Patrick Delperdange Books

En rentrant de l'école, David découvre que l'appartement de sa mère a été cambriolé. Sa vie bascule car sa mère refuse d'appeler la police. Quand Carmen, son amie, sort un billet de sa poche, il sa...

Un peu apres la fin du monde

By Patrick Delperdange

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Tombe des nues

By Patrick Delperdange

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La beaute Louise

By Patrick Delperdange

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How to Convert ISBN-10 to ISBN-13 (and Vice Versa): A Complete Guide

If you’re in the world of books—whether as a publisher, librarian, bookseller, or avid collector—you’ve likely come across the terms ISBN-10 and ISBN-13. Understanding these formats and knowing how to convert between them is essential for maintaining consistency and compatibility in book records. In this post, we’ll cover everything you need to know about ISBN conversions, step by step.

What is an EAN and How Does it Relate to an ISBN?

If you’ve ever purchased a product online or in a store, you’ve likely come across a barcode. Behind these barcodes lies a standardized system that makes modern commerce possible. Two key codes often encountered are the EAN (European Article Number) and ISBN (International Standard Book Number). But what are they, how are they connected, and why are they so crucial? Let’s explore.